Patents by Inventor Theodore William Sigg

Theodore William Sigg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 3959893
    Abstract: An educational gaming apparatus consisting of a set of numbered blocks, at least six in number and dodecahedron in shape, and a single operator block, also of dodecahedron configuration, each of the number blocks bearing one of the digits zero to nine on each of its faces with an unbiased distribution of the digits zero to nine on the set of numbered blocks, the operator block bearing one or more of the basic mathematical symbols of addition, subtraction, multiplication or division or their equivalent on each of its faces such that at least one of the basic mathematical symbols or their equivalent is present on an uppermost face section of the operator block for any random toss by an individual who can then arrange the blocks in such an order that the uppermost faces of the blocks indicate a mathematical problem and its solution.
    Type: Grant
    Filed: September 19, 1975
    Date of Patent: June 1, 1976
    Inventor: Theodore William Sigg